docs(index): ✨ add GitHub and CNB project links with star badges

- Add GitHub stars badge linking to stargazers page
- Add CNB badge linking to CNB project page
- Add new section '相关链接' before '技术交流' section
- Match badge styles with README for consistency

Author: binggg

.github/workflows/sync-to-cnb.yml

@@ -0,0 +1,22 @@
+name: Sync to CNB
+on: [push]
+
+jobs:
+  sync:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      
+      - name: Sync to CNB Repository
+        run: |
+          docker run --rm \
+            -v ${{ github.workspace }}:${{ github.workspace }} \
+            -w ${{ github.workspace }} \
+            -e PLUGIN_TARGET_URL="https://cnb.cool/tencent/cloud/cloudbase/CloudBase-AI-ToolKit.git" \
+            -e PLUGIN_AUTH_TYPE="https" \
+            -e PLUGIN_USERNAME="cnb" \
+            -e PLUGIN_PASSWORD=${{ secrets.CNB_TOKEN }} \
+            -e PLUGIN_FORCE="true" \
+            tencentcom/git-sync

doc/index.mdx

@@ -55,6 +55,15 @@ graph TD
     J --> K[Web/小程序/API]
 ```
 
+## 相关链接
+
+<div align="center">
+
+[![GitHub Stars](https://img.shields.io/github/stars/TencentCloudBase/CloudBase-AI-ToolKit?color=F59E0B&label=stars&logo=github&style=flat-square)](https://github.com/TencentCloudBase/CloudBase-AI-ToolKit/stargazers)
+[![CNB](https://img.shields.io/badge/CNB-CloudBase--AI--ToolKit-3B82F6?logo=data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTIiIGhlaWdodD0iMTIiIHZpZXdCb3g9IjAgMCAxMiAxMiIgZmlsbD0ibm9uZSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48cmVjdCB3aWR0aD0iMTIiIGhlaWdodD0iMTIiIHJ4PSIyIiBmaWxsPSIjM0I4MkY2Ii8+PHBhdGggZD0iTTUgM0g3VjVINSIgc3Ryb2tlPSJ3aGl0ZSIgc3Ryb2tlLXdpZHRoPSIxLjUiLz48cGF0aCBkPSJNNSA3SDdWOUg1IiBzdHJva2U9IndoaXRlIiBzdHJva2Utd2lkdGg9IjEuNSIvPjwvc3ZnPg==&style=flat-square)](https://cnb.cool/tencent/cloud/cloudbase/CloudBase-AI-ToolKit)
+
+</div>
+
 ## 技术交流
 
 ### CloudBase AI Coding 交流群